Date: Wed, 8 Oct 2008 11:16:10 -0400 From: John Baldwin <jhb@freebsd.org> To: =?gb2312?q?=C7=F1=BD=A3?= <qj@huawei.com> Cc: freebsd-net@freebsd.org, freebsd-questions@freebsd.org, freebsd-threads@freebsd.org Subject: Re: kernel profiling: spinlock_exit consumes 36% CPU time. Message-ID: <200810081116.10298.jhb@freebsd.org> In-Reply-To: <000a01c9291a$b81fa560$01000001@china.huawei.com> References: <000a01c9291a$b81fa560$01000001@china.huawei.com>
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On Wednesday 08 October 2008 03:51:48 am =C7=F1=BD=A3 wrote: > Many thanks for the information. >=20 > Could we say that interrupt handlers consumed ~36% execution time? >=20 > Is this number too high? Is it possible that we abuse the use of critical > sections in kernel? I think whether or not it is high depends on the workload. =2D-=20 John Baldwin
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